If F is 400 N and S=2m^2, find the pressure(P) ? (Doh)(Speechless)

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- July 25th 2009, 02:16 AMalternativePlease help solving this physics problem
If F is 400 N and S=2m^2, find the pressure(P) ? (Doh)(Speechless)

- July 25th 2009, 02:38 AMsongoku
P = F/A

In this case, A = S = area - July 25th 2009, 03:00 AMjashansinghal
what does S mean,displacement?

- July 25th 2009, 03:03 AMsongoku
From the unit given, it's area

- July 25th 2009, 03:07 AMe^(i*pi)
S cannot be displacement because it has dimensions of (Length)^2 whereas displacement has dimensions of (Length). This means that S is an area of some kind although it is more usual to use

**A**to denote an area

where is the angle between the force and the vertical and will be measured in or

In your example it's probably a perpendicular force so and it reduces to